Question about Protron PLTV-4250 42 in. LCD Television

2 Answers

42" Protron LCD TV

It would turn black...we would turn it off a while and then it would work when we turn it back on....now it has turned off for good. It is just not getting any power, we have tried everything. It has always been plugged into an expensive surge protect. Any suggestions?

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,077 Answers

Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The most common problem are the power supply for the screen itself. Most manufactures call it a Blacklight Inverter Board. But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.

You have a few choices:

1. You can try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and reset itself.
2. If by chance the TV is still under warranty, go that route.

3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15.

4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.


I hope I shed some light on the subject for you.

Posted on Jul 18, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

This fix my problem: (Schottky Barrier Diodes) reads good Change it anyway

Posted on Aug 07, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a Protron LCD 26" TV model#LT26CIPI...The tv was working great turned it off on night and in the morning turned it back on to sound but no picture just a Black screen...when you change channels


Since its a LCD take a flashlight and have the room as dark as possible and with the light look to see if a very very faint image of the picture can be seen or not---many of these sets use a "back light" for the brightness and if that's not on.......

Dec 11, 2012 | Protron PD-DVR100 DVD Recorder

1 Answer

My protron 42 lcd tv is not turning on the tv tries to power up and then it comes on and then just power down


Hello,
Open the back cover of the television to check for dry soldering , if found resolder and power it on , if otherwise,
Your power supply board is not yet dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Hope this helpout......

Jul 07, 2010 | Protron PLTV-4250 42 in. LCD Television

1 Answer

42" protron lcd turns on and off by itslef


Your mainboard is damaged, replace it and that will solve your issue.

Jun 06, 2009 | Protron PLTV-4250 42 in. LCD Television

2 Answers

Protron PLTV 42 IN issue


I have had the same problem off and on since I purchased my protron 42" lcd. I have found that if I hold the power button to the tv a little longer, I rarely have the problem. Hope this helps.

Jan 22, 2009 | Protron PLTV-4250 42 in. LCD Television

1 Answer

No video on my Protron PLTV 4250


check the video with a flashlight against the screen, if present the backlight inverter has failed.

Dec 07, 2008 | Protron PLTV-4250 42 in. LCD Television

1 Answer

Proron pltv-4250 no signal


THE BEST INPUT ON YOUR SET IS THE HDMI INPUT.2ND THE COMPOSITE INPUT. 3RD THE COMPONENT INPUT. AND 4TH THE ANTENNA INPUT. MOST DISH BOXES HAVE AT LEAST THE COMPONENT OUTPUT. YELLOW IS THE VIDEO AND RED AND WHITE FOR AUDIO. USE RCA CABLES TO GO FROM BOX TO LCD SET. ON THE DISH BOX YOU CAN GO FROM ANTENNA OUT TO THE CABLE OR ANTENNA IN ON THE LCD. SWITCH TV TO CHANNEL 3. AND TURN YOUR DISH BOX ON.

Nov 22, 2008 | Protron PLTV-4250 42 in. LCD Television

3 Answers

My PROTRON LCD PLTV 32 IS BLACK & DEAD


LOOKING FOR A AC ADAPTIR MODEL :090-02180-13

Oct 03, 2008 | Protron PLTV-32 Television

1 Answer

Protron 42


on the back of the TV where the power cord plugs into the back of the tv there is a small black on/off switch- it's not as obvious as you would think.... but that was turned off. Not sure how that happened since the back of the Tv was never touched when it went dead- but I unplugged the cord from the back of the tv and from the outlet and reset that switch and it worked.

Jul 10, 2008 | Protron PLTV-4250 42 in. LCD Television

Not finding what you are looking for?
Protron PLTV-4250 42 in. LCD Television Logo

553 people viewed this question

Ask a Question

Usually answered in minutes!

Top Protron Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2326 Answers

The Knight
The Knight

Level 3 Expert

74887 Answers

Cindy Wells

Level 3 Expert

5265 Answers

Are you a Protron Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...